Sewing-machine.



R. LOEB.

SEWING MACHINE. APPLICATION FILED omai. I9I3'.

:Iteted Aug. 21

4 SHEETS-SHEET l.

H. LOEB.

SEWING MACHINE.

APPLICATION FILED 050.31. 1913.

Patented A110: 21, 1917.

4 SHEETS-SHEET Z.

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SEWING MACHINE. A'PPLICATON FILED DEQ-3l. 1913- l52538,033V Patented Aug. 21, l1917'.

4 SHEETS-SHEET 3.

H. LOEB.

SEWING MACHINE. APPLICATION FILED nEc.31.

l12119111911 Aug. 21, 191?.

SHEET 4.

4 SHEETS- SEWING-MACHINE.

Specification of Letters Patent. Patented Aug. 21, 1917.

` Application mea December 31, 1913. serial no. 809,798.

y T all whom t `may concern:

, Be it known thatI, RUDOLFV LonB, aciti- Zen `of the United States,v and a resident of Jenkintown, Montgomery county, Pennsyl Vania, have invented certain Improvements in Sewing-Machines, of which the following is a specification.

-The object` of my invention is yto provide a sewing machine of the embroidery type, more particularly adapted for the formati on r of eyelets or eyelet embroidery, which eyelets may be circular, or may have a substantially oval contour, or be pointed at one end and oin a semiscircular portion at vrthe opposite end. y

The machine which I employ for applying stitches to the edges ofthe preformed aperi vention is more fully describedhereinafter,

tures is substantially like ithatdisclosed in my pending` application tiled Januaryi14, 19,13, Serial No. 741,948, and the means wherebyy I am` enabled to stitch the `edges ofthe preformed apertures to effect the eyelet embroidery is inthe nature of an attachment tosaid machine. ,It will be'k understood, however, that such attachment may, with slight modifications, be applied to` other sewing machines of a `type substantially like the one illustrated in theaccompanying drawingigs.`

Ilie mechanism for effecting the desired result andforming the subject of my inreference being `had to the accompanying drawings, in ywhich Figure 1, Aisa side elevation of a sewing machine having and containing the improvements forming the subject of my presi ent lnvention;

Fig. 2, is a `plan view of the same; y

Fig. 3, is a side elevation, partlyin section, of the eyelet forming mechanism;

Fig. 4, is a plan view of the eyelet forming mechanism; the `bed of ,the machine being broken away to more clearly illustrate the same;

Fig; 5, is lend `elevation of the frontj of thema-chine; y y .i y ,y

Fig. 6, 1s a` detached view of certain parts `of the mechanism, omitting thehead and frame;

Fig. 7; is a detached perspective view of he fabric-holding means; y y' f Fig. 8. is a perspective view of a portion ofthe sliding bed-plate showing coperative meansl for` use with, said fabric-holding mean i. u.,

9, is a sectional view of the fabricholding means; y

Figs. 10 and 11, are views 'illustrating details of my invention, and

Figs., 12, 13 and 14, are views illustrating successive stages `in the formation of one form of the eyelets.

As before ``note`d, the machine for effecting the formation of the stitches isof a character substantially similar to kthat illustrated in my 'pending application, Aand the needle operating mechanism is controlled by a series; of cams andv adjustingr elements as disclosed thereing; all `of which is substantially as follows:

In lthe drawings, 1 represents the frame of the machine; v2`tlie head, in which are contained the means for eiecting vertical reciprocation of vthe needle-bar 3 which, in this type of machine is pivotally mounted soas to be capable of vibrating under the action of suitablemechanism. In this connection, it may be noted thatthe mechanism` for imparting verticaly reciprocation to the needle-bar is old and wellknown in the art, and no extended reference thereto will be made herein. The needle-bar carries a needle of any ordinary or usual type, indicated at 5 which may be secured to said bar by a set screw 6.

In the -lower part of the head of the machine I provide an arm 15, pivoted at 16 and having a sleeve 17 pivoted thereto at 18; saidy sleeve encircling the said needle-bar and through which said needle-bar may slide during its vertical reciprocation. ment imparted to the arm 15 effects vibration of theneedle-bar, andfor this pur-y pose. the following mechanism may be employed, which mechanism includes means for adjusting or regulating the extent of such movement.v i

Suitably carried by the frame of the machine is a` counter-shaft 20, having a gear wheel 21 which receives motion from agear wheel 22 on amain driving shaft 23. The opposite end of said countershaft carries a cam 24, with which engages a roller 25 carf is ,provided withfledjustable screwsr` Stand 32 forming contact points.; said screws having lock nuts 33 wherebyhvthey may Ibe: rei tained in any predetermined position of adjustment.

Return movement of the arm Il5, vwhen the roller-carrying: arm` `26is released from 29, movement is impartedto the cam 24h-fand transmitted to the arnf v15 for the .pinfpo'se Qfrleretieathe ,needle-ber eed .ite etteehed parts by the/means yjust described; 4reverse movement of said needle-'bar br-iing'accoinplishted thespring referred to. yThe extent of movement of the bar by the 2e and roller arm 4.26.r is determined 'by the .Size et'eedeam; while the. position of. the

needle-,ban needle and presser vfoot :with respect t'o'fthe' lslotjin the stitch plate is ,de-

' termined by the adjusting screws 3l and 32 machine.

one. .being-eet .irland ,the other out, eethe ease mi" be, dndthe'upper-ene, indicated et 3.1, for instance, bearing,upon the4 frame l of the The ermfer lever' 26 is 'in UtWO inerte, hrlgedly edeneetedtdsether bve ein 26e and held in operative conditionby av pin 40a slidablymountedin v'said or lever, which Ping wie. in Operative. engagement with, the end 40h of "afb'ell crank lever 4:0 which is pivoed, to., Sadam er leverde; m41- 'When this pin toa isv withdra'wn,y in the manner hereinafter described, the. @1.1.1124 may more ktheend offthe lever V26 on the pivotjpin 26a i without' affecting the rockshaft 27.

ln addition, however, I have provided Ineens ,51.11 the `Shape lef e bell-'Creek lever .e0

riveted at .el .te erreieetion' cerriedjbv the lever y orf yarm 26, which bell-crank lever is operatively connected to arod, ina manner hereinafter described,underf the control cfa knee-lift. (not shown) employed with this type 'of; machine` yunder control of the operato'r.v Operation of, said "knee-lift to the full extent in a `manner common to machines 0f .this ,type etoile thevbreten df the, needle; permitting it to reciprocate vertically and form tacking stitches in order to stop off thefthfeed eef/1191ered` in the binding er edsingjof ythe apertures ofthe fabric. `'Illfiese lapertures are preferably preformed.

The means for holding fend eeetne Stitehlg er; edsnaef theeeeperturee .in the fabric may be described vas follows:

The bed-plate 55 offthe machine is re cessed or apertured at `56',fand"miapted to saidyrecess kor ,aperture is a; plate 57 the present instance arranged to yslide upon 'ways 5`8ffor'med` inf-the sides of ythe 'reci-iss or apertere lef-Leedlleed-lelfte, andthe plete'eerres meen? fel'. heldne the". febriie p Steh-.Ineens permitting complete or partial rotation of the fabric froma single axis in the plane of the vibrations ofthe needle. Mounted on this plate 57 is a bracket 60 to which a lever tilzis-pivoted at 62; one end of said lever being connected to a post 63 carrying the fabric-.holding mechanism, generallyindi- `cated at 64;; said post .having a lug 65 adapted toa slot 66 in the' end of said bracket whereby movement imparted thereto will be effected in avertical direction, and a springrreeeedrluneel 67'meuntedi11- d deelne .6d is employed to hold' the rear end of said rlever up Se, .thet'the fabric-holding, element may bez-maintained "in the lower position for operative engagement with thel'fabric. `v

Pivotally vmounted at 69 on the under side of the machine Vis 'a'.lever v7( ),.which is conneeted bymeans of a link 7l with the lever 61 pivotedy to the'fbracket.' This lever 70 carriesalng 7 2 .whichmay be provided with, a roller73, for a purpose to bevdescribed.:

' Suitably connected to a rock shaft 75,

which may be journaled in bearings beneath thebed-plate of the machine is a block 76 having-an arno 77 bearingfupon the roller 78, andan arm78 to whiclia spring79 isfattaohed; the :opposite Yend of said spring being l anchored at .80"tofthe frame` or bed-plate wherebvthe normal position of said block 76wi1ll maintain the arm 78 of the same out of operative engagement with, the Iroller.

Depending from the shaft75 is yan arm or rod 82, tohwhich a knee lever under the control of the operator may be attached, (not shownlandwhenjsaid knee lever ismoved tothe right, the lever 7 Ois `depressed and the fabric-holding means raisedv for the positioning` of the fabric beneath thesame.

Operatively connected with the stitch controllingmechanismis la krod 85 which is maintained in itsv upper position by means of a spring S6; such rod extending through the bed-plate 55 yand `having at its Alower end a collar 87 whiohmay be secured by a set screw 8 8; .which collar lies inthe path of a projection 7 0a on theend of the lever 70 so that when ythe knee lever'is operated to raise theAfabric-holdingmeans, said rod 85 will be' lowered against the tension ofthe supporting-Spring Thismaction effects movementof the bellcra/nk leverfto and causes itto' withdraw the pin 40a and render inactive'the arm or lever 25 operatedfby the cam 24, thereby stopping movement of the rock shaft 27 and its lever 28 controlling the length of the stitches. For thispnrpose the rod 85'is provided with a projection Sa which'engagesone enld of said bell-crank lever 40 when said .rod is lowered.

The fabric-holding means 64 is y more` clearly described in Figs. 7, v8 and 9, wherein it iswlseen toy consist of a, circular element 90. whichfreceives a series of rings 917 92 and 93, vproperly secured together by clips 94 era'tor. i f i i `The member.. 91 of the `.fabric-holding w carriedby one of said ringer-'the ringa93 being channeled at 95' on its under side for the reception of a ring of rubber or similar material, indicated at 96,. and being grooved` on its upper side iat 97 for the reception of balls`98 interposed betweenzthe same and a similarly yformed groove in the ring 92,

. thereby forming a ball-bearing and permitting `ready rotary movementfof the rubbershod lower ring with respect to the rest of the structure.` i d 1 i The slidingplate 57 is provided with a circular plate 99 disposed concentrically with respect tothe rubber-Shoal foot plate or ring `98.01?A the fabric holding means and `being `grooved for the reception of balls 100 whereby an anti-friction' bearing between the same `and the recessi101 in the sliding plate 57 receiving the `same isprovided; said circular plate 99 being `roughened on its upper sur faceand held in place by a central clamping plate 102,-which `may be securedby screws 103. This clampingplate andthe `sliding plate 57 are notched'or recessed at 104 for Pivotally mounted beneath .they bed-plate is a two-armed lever 110;onearmibeing under the control` of aspring 111, `while the `opposite arm` is in engagement with the pin 106, being secured thereto by nuts 112. This arm (11m) of the levercarries on its under to insure proper tension upon the material being embroidered. I y

Upon examining Figs. 12, 13`and 14, it

will be noted that the fabric as prepared for 'embroidery hasa number of preformed apertures 120 therein, some of which are pointed at one end and join semi-circular portions at the opposite end, which apertures are to have their edges stitched 0r seamed. They fabric is held stretched in an ordinary tambour frame (not shown) commonly emside a hook towhich a chain` `116 is at tached; the lower end of thesame being connected to an ordinary foot treadle (not shown). By pressing this treadle,` the pin will be removedafromthe sliding plate carrying the fabric-holding means16fl, and the operator may move suchl plate,` for apurpose to be described. .i i i As may be readily seen upon reference to Fig. 3, the sliding plate57 is `:mounted so as s to have slight longitudinalmovementk with .i yrespect. to the bed-plate of the .machine,

is under control of the opwhich movement means inthe form of yan annular ring is of latory, as indicatedin F i g. 9,-s0 that springs 91a may be `interposed between it and the' element 90' toinsure pressureluponthe rubi ber ring orfoot 96 for holding ythe fabric.

againstthe rotatable plate 99. Two `or more i a peculiar shape; being substantially unduployed in embroidering machines, and this tambour frame is laid over the bed-plate of 'the machine; the fabric-holding meansbe-` ing raised to permit the proper positioning of the fabric beneath the same, and the operator then manipulates said tambour frame so as to bring the point mof the fabric, (see Fig. 12) directly opposite the plane of vibration of the needle; the sliding plate 57 carrying the bracket which supports the foot being held by the pin 106. As soon as this positionis determined, the pin is released, (in the manner described), and the operator grasping the bracket 60 by hand moves the same to the right, away from and out of controlof said pin 106. The stitch operating mechanism of the machineis then set in motion; the preliminary short stitches indicated at e being first placed, yand `then while the said needle is vibrating to and vfrom the operator, the bracket is slowly moved tothe left, effecting the formation of the substantially paralleling stitches on the upper edge of the aperture, as indicated in Fig. 12. As soon as the point m is reached, Y

the pin 106 automatically enters the aperture' orrecess 108 in the sliding plate, preventing further movement to the left of said plate and indicating that the stitching to that extent at least has ceased. The operator then rotatively turns the fabric; a movement of which may readily be effected byfreason of the holding means above de.- scribed; the rubber pad on the under side thereof holding the fabric against the turn-4 table plate, and the two being movablefwi th a minimum of friction owing to the ball bearings employed, which has the effect ofk stitching the semi-circular end, in the manner indicated in Fig. 13, which. brings the stitched portion to the condition and position-shown inrFig. 14, and then by releasing i,

the pin 106 andeifecting further movement of the bracketto the left, the completion of the stitching around the .eyelet may `loe effected. 'Theother apertures are stitched in a similar manner.

I claim: 1. In an eyelet forming machine, the comn bination Vof stitch formingmeans, a horizonsprngsmaylbe employed7 as maybe desired,

tally disposed manually operable slidable plate, means for.` limiting the movement. of `said ,plate in both directions while making an eyelet, and rotatable fabric-holding 130 meansf'manually' operable carried by said plate; said rotatable fabric-holdingwmeans beingv operable When'the plate 'reaches f the limit ofmovementinI one direc'tien'and said lmevei'nent limiting means "servm'gas'a vlocky for' holding the 'plate infposition to permit opgera'tiontf of* saidfrotatable' fabric-holdingmeans.'` y

2: In'anfeyeletforming machine, the combinati'on" of' stitchE forming means, manu'-y ally' operable' slidable'r supprtingmember,l rotatablev and verticallyinovable fabric-hold ing means-carried by said :slidable' supporting f l member, .flocking `means 'for said supporting 15z member, and `means for liftingthe fabrichelding; means, said 4 fabric-holding means being manually" rotatable at the end of the' movement 'f of saidY supporting member;

In' mechanism" -forl forming:y eyelet" em`: "broidery, `the" combinationy of stitch forming y means,` manually' operable` sliding plate,

means" orlockingsaid plate, means for releasing-theysame'-, fabric-holding means carried'by said plate, said fabric-holding means being rotatable, and 'means' for laterally.v vibrating saidy stitch iorming means duringthe" slidlng'niovem'e'nt.osaid plate andthe` rotary movement' of said`I fabric'- holding means.`4

ewnmechanism :torl forming eyelet broidery, the combination'of stitch forining means, a manually operable 'sliding' plate', f means fori. locking said plate, means Y for releasing the same-,fabri'c-holding means carried'byx saidplate,` said*y fabriceholdin'gmeans being slidable withy the plate and rotatable With'respectthereto, and means for'l laterallyfvibrating said" stitch` forming means Vduring the sliding movementv of said f plate and `the rotary: movementfofv said fabric-holding means;V f

5. The; combination, in av machine for forming' eyelets, of `a manual-ly operabley sliding .plategf fabric-holding means carried thereby', locking 'means for said' plate, a lever mounted on Isaid plate'y in engagement With l f the kfabric-holding means, means Itending tov holdsaid'fabric-holding means in the lovvered position, and linee-controlled means -or o} eratingfsaidl lever toY elevate said fabricholding'imeans.

6; IIn an eyelet machine, the combination offa vslidableplatehaafinga rotaryturntable, ball' bearings-V therefor, aabric'- holding? 'membeneoperating with* said turntable* ball `bearings forY saidy 'fabric-holding member, thei latterl being rotatable with respect by;l bracketv supported by'l said slidablev member, fabric=holding meansy vertically' movablelin' 'said bracket, means for' elevating' the'ifabric-holding means, said fabric-hold# ingYme'ans comprising' a Vplurality' of circular' nlates,"a holder', therefor, land springs interposed between` the-'holder ,andI rings Whereby the'holder may properly engagel the goodsy 8. In' an 'eyeletforming machine, the' com-v bination of laterally. vibrating stitch forming means, a manually operable slidingv member lravingfarotary turntable, rotatable fabric-holding means cop'erating with' said turntable, and friction yproducing means for said fabric-holding vmeans' rotatable 7therevvith.

9; In an eyelet forming machine, the combi'natien'k of laterally' vibrating stitch-forming me'ans,r a manually operable sliding plate', rotatable fabric-.hbldi-ng means carried'by'v said plate, and a-friction producing' deviceY for said vfabric-holding -me'ans rotataj ble therewithjand means for arresting the lateral' vibrations of said stitchforming- 10. Inman 'eyelet forming machine, the combination of laterally', vibrating stitch forming. means, a manually operable sliding supp-ortingmember, :fabric-holding means carried by saidsupporting member, 'means or'iraisin'g said'abric-holding means and arresting the lateral vibrations `of said stitchforming means,;and` a rotatablefriction producing device forsaid fabric-holding means.

1l. Inf an eyelet formingmachine, i thef combinationI ofl latera'lly vibrating stitchformingrmeans, a manuallyv operable'v slidi'ng means carried by said plate`,means forloclr- `ingle-said plate With'the axis of the fabricyholding means inthe plane of vibration of the'stitch-forming means, and a :friction proplate having@ ak turntable', Vfabric-holding* ducing? devicej for said "fabric-holding means rotatable with said turntable when the `vslidingplat'e* is yin the locked position.

l2.l In me'chanismf for forming eyelet' embroidery,l `the cbmbination of laterally vibratingv stitch-'forming means, a manuallyl operable. sliding i .plate .having a turntable,

means for locking said plate, means o'r releas'ing'cthe"y same,V fabric-holding means carried by '.said` plate, means: for vibratingrsaid movementof said plate and the rotary movement of said'l fabric-holding means," friction producing device for said fabric-hold'- ing-means rotatablevvith said turntable, and

*stitch-forming .means `during the sliding:y

a ball bearing`v for said friction producing devicer; l p

.Infmechanismfo'r forming' eyelet emi broi'dery, ythe `combinationy of stitch-forming means-forflockingfsaid plate, means for releasing thesame, fabric-holding meanscarrled'by-fsaid plate', said .fabrc-holdingfmeans means, manually operablev slidingv plate,

being slidable with the plate and having a portion rotatable with respect thereto, means for laterally vibrating said stitch-forming means during the sliding movement of said plate and the rotary movement of said fabric-holding means, and a friction producing device for therotatable portion of said fabric-holding means. y

14. In an eyelet machine, the combination of a horizontally slidable plate manually operable and having a rotary turntable, a fabric-holding member cooperating with said turntable and rotatable with respect to said sliding plate, and laterally vibrating stitch forming mechanism combined therewith, said fabric-holding member being manually rotatable during the operation of the stitch forming mechanism whereby radial stitches may be laid on the fabric.

l5. The combination, in a machine for forming eyelets, of a manually operable sliding plate having a turntable, rotatable fabric-holding means carried by said plate and coperating with said turntable, a lever mounted on said plate in engagement with the fabric-holding means, a rod connected to said level', a spring kfor holding said fabric-holding means in the lowered position, and knee controlled means operatively connected to said rod for elevating said fabric-holding means.

16. The combination, in a machine for forming eyelets, of a manually operable sliding supporting member having a turntable, fabric-holding means carried by said supporting member and rotatable with said turntable, a lever mounted on said supporting member in engagement with the fabricholding means, a rod connected to said lever, a spring for holding said fabric-holding means in the lowered position, knee-controlled means, for elevating said fabric-holding means, and an independent friction producing .device for the fabric-holding means.

17. In an eyelet forming machine, the combination of a slidable supporting member having a rotary turntable, a fabric-holding member cooperating with said turntable, said fabric-holding member being rotatable with respect thereto, laterally vibrating stitch-forming mechanism combined therewith, said sliding member being manually y radial stitches, and a friction producing dey vice for said fabric-holding means rotatable therewith.

18. In an eyelet machine, the combination of a frame, a movable supporting member carried thereby, a bracket carried by said supporting member, fabric-holding means vertically movable in said bracket, said fabric-holding means comprising a plurality of rotatable rings, a holder therefor and iiat tension springs interposed between the holder and one of said rings whereby the holder may properly engage the goods, and means for lifting said fabric-holding means from engagement with the goods.

19. In an eyelet-maohine, the combination of a slidable plate having a rotary turntable, ball bearings therefor', a fabric-holding member coperating with said turntable, ball bearings for said fabric-holding member, slidable means carrying said fabricholding member, the latter being rotatable with respect to said slidable means, vibrating stitch-forming mechanism combined therewith, said fabric-holding member being rotated during the operation of the stitch forming mechanism to lay radial stitches, and friction producing means for said fabric-holding means.

20. In an eyelet machine, the combination of a frame, a slidable plate carried thereby, a bracket supported by said slidable plate, fabric-holding means vertically movable in said bracket, said fabric-holding means comprising a plurality of rotatable rings, a holder therefor and flat tension springs interposed between the holder and one of said rings whereby the holder may properly engage the goods, ball bearings for said rings, and means for lifting said fabric-holding means from engagement with the goods.

In testimony whereof, I have signed my name to this specification in the presence of two subscribing witnesses.

RUDOLF LOEB.

Witnesses:

MURRAY C. BOYER, WM. A. BARR.

Copies of this patent may be obtained for ve cents each, by addressing the Commissioner of Patents, Washington, D. C. 

